Search for $$ZH \rightarrow \ell^+\ell^-b\bar{b}$$ production in $4.2$~fb$$^{-1}$$ of $$p\bar{p}$$ collisions at $$\sqrt{s}=1.96~\TeV$$

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Submitted to Phys.Rev.Lett.

OSTI ID:986630

Abazov, Victor Mukhamedovich; Abbott, Braden Keim; Abolins, Maris A; Acharya, Bannanje Sripath; Adams, Mark Raymond; Adams, Todd; Alexeev, Guennadi D; Alkhazov, Georgiy D; Alton, Andrew K; Alverson, George O; Alves, Gilvan Augusto

We present a search for the standard model Higgs boson produced in association with a Z boson in 4.2 fb{sup -1} of p{bar p} collisions, collected with the D0 detector at the Fermilab Tevatron at {radical}s = 1.96 TeV. Selected events contain one reconstructed Z {yields} {ell}{sup +}{ell}{sup -} candidate and at least two jets, including at least one b-tagged jet. In the absence of an excess over the background expected from other standard model processes, limits on the ZH cross section multiplied by the branching ratios are set. The limit at M{sub H} = 115 GeV is a factor of 5.9 larger than the standard model prediction.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 986630
• Report Number(s): FERMILAB-PUB-10-325-E; arXiv eprint number arXiv:1008.3564; TRN: US1006396
• Journal Information: Submitted to Phys.Rev.Lett., Journal Name: Submitted to Phys.Rev.Lett.
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CROSS SECTIONS
FERMILAB TEVATRON
FORECASTING
HIGGS BOSONS
PRODUCTION
STANDARD MODEL
Experiment-HEP